
Timing belt Optibelt 50 AT20 / 5400 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
OPTIBELT 50 AT20 / 5400 AFX belongs to timing belt, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 50 AT20 / 5400 AFX and any equivalents.
The Optibelt 50 AT20 / 5400 AFX is an Alpha Flex timing belt with an AT20 profile and a 5400 mm length. It is the correct starting point when you are matching a belt that is already on the drive and you need the same profile and length.
Start by reading the marking on the back of the belt you are replacing. If it shows the AT20 profile and the 5400 mm length, this Optibelt Alpha Flex belt is the direct match. The 20 mm pitch is part of the AT20 profile, so the pitch does not need to be measured separately when the marking is legible.
If the old marking is worn or missing, measure the length along the belt and confirm the tooth profile before ordering. Send the part number 50 AT20 / 5400 AFX, or the profile and length you measured, by WhatsApp or email and the team will confirm the belt or suggest an equivalent.
For drives that run more than one belt, replace the full set at the same time so the load stays evenly distributed. Inspect the pulleys for wear and check the tension after installation.
Dimensions
- Profile
- AT20
- Pitch
- 20mm
- Length
- 5400mm
Frequently asked questions
- How do I confirm this belt matches the one I am replacing?
- Check the marking on the back of the old belt for the AT20 profile and the 5400 mm length. If it matches, the Optibelt 50 AT20 / 5400 AFX is the belt to quote.
- What if the old belt marking is unreadable?
- Measure the length and identify the tooth profile from the pulleys. Send those details or the part number 50 AT20 / 5400 AFX to the team by WhatsApp or email for confirmation.
- Can I replace just one belt on a multi-belt drive?
- It is good practice to replace all belts in the set together, so they share the load evenly. Inspect the pulleys and recheck tension after fitting.

